接口调的网址："https://loadtest.eimageglobal.com/interface/security/toPay.htm"

接口返回：{"result":"0000","payInfo":{"payNo":5818,"appId":"wx77ad90aaecd5b3fb","packageValue":"Sign=WXPay","prepayId":"wx15205010370851e117780c640746283240","nonceStr":"DJDrVUz7","sign":"1FD096D908862F03DD8713BF00CA7C64","timeStamp":"1557924610","codeUrl":"https://wx.tenpay.com/cgi-bin/mmpayweb-bin/checkmweb?prepay_id=wx15205010370851e117780c640746283240&package=2332903479","partnerId":"1529795631"},"msg":"成功"}